• CLASSIC IWINDSURF
    Classic myiWindsurfClassic Wind & Weather maps and graphs
Hello Guest
 ��� 

Classic iWindsurf
kiter? see iKitesurf.com
We're curious: Are you a windsurfer or a kiter?         
Classic iWindsurf is here to stay. Our new Wind & Weather tools are also available to you. More info
Hi guest · Get your free membership now · Log In ·
WI - MN / IA

Real-Time Data
 > Dynamic Map
 > Wind Obs Map
 > Radar + Satellite Map
 > Wind Obs Summary

Computer Forecasts
 > Model Tables
 > Wind Vector Fx Map
 > Wind FlowViz Fx Map

More Maps

Other Resources
Wind Graphs
Meteograms

Watches/Warnings
>Flood Statement

New iWindsurf: Select your region for wind observations & forecasts:
North America | Europe | South America | Australia & Oceania | Asia | Africa

fzus63 kmqt 201948
glfls 
297 

open lake forecast for lake superior
national weather service marquette mi
348 pm edt sun may 20 2018

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...a high pressure ridge of 30.2 inches will linger over 
the upper great lakes through tuesday as it weakens to 30.1 
inches. a weak low pressure trough of 30.0 inches will drop south
across lake superior tuesday night and into wednesday morning. in
its wake, high pressure of 30.2 inches will build over northern 
ontario wednesday. the high will shift over the great lakes region
through thursday as one low pressure trough of 29.7 inches sweeps
south into northern ontario and a second trough of 29.7 inches 
moves over the western plains by the evening. the western plains 
trough moves into the upper great lakes on friday afternoon.

lsz162-210400-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
348 pm edt sun may 20 2018 /248 pm cdt sun may 20 2018/

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.monday...southwest winds less than 10 knots backing northeast in
the afternoon, then increasing to 5 to 15 knots late. waves calm
to 2 feet. 
.monday night...east winds less than 10 knots veering west after
midnight, then becoming southwest 5 to 15 knots late. waves calm
to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots becoming west less
than 10 knots after midnight. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots becoming northeast
less than 10 knots after midnight. waves calm to 2 feet. 
.thursday...east winds less than 10 knots increasing to 5 to
15 knots. a chance of showers. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots backing northeast. a chance of
showers and thunderstorms. waves calm to 2 feet. 

$$
fzus63 kmqt 201948
glfls 

lsz263-210400-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
348 pm edt sun may 20 2018

.late this afternoon...southwest winds 10 to 20 knots. waves 1 to
3 feet building to 2 to 4 feet. 
.tonight...southwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...southwest winds 5 to 15 knots veering west in the
afternoon, then veering northeast late. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots becoming southeast
less than 10 knots after midnight. waves calm to 2 feet. 
.thursday...south winds less than 10 knots increasing to 5 to
15 knots. a chance of showers. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots. a chance of rain showers.
waves building to 2 to 4 feet. 

$$

 myiW | Wind & Forecasts | Forums | Classifieds | Membership | Support
like us on facebook 
© Copyright 1999-2018 WeatherFlow, Inc · Contact Us · Ad Marketplace